Intracerebral stimulation of left and right ventral temporal cortex during object naming

Ulvin, Line Bédos; Jonas, Jacques; Brissart, Hélène; Colnat-Coulbois, Sophie; Thiriaux, Anne; Vignal, Jean–Pierre; Maillard, Louis

doi:10.1016/j.bandl.2017.09.003

Cited by 29 publications

(19 citation statements)

References 47 publications

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“…To prevent false negative stimulation the authors concluded that intensities up to at least 1.5 mA were required (Trébuchon and Chauvel, 2016). Other sEEG studies reported comparable parameters (Bédos Ulvin et al, 2017;Arya et al, 2019) applied ECS with intensities up to 8 mA (phase duration: 300 µs) or until the occurrence of behavioral effects, after discharge (AD) or seizure. Higher intensities, up to 10 mA were reported for ECS in anterior language area (ALA) but were also coupled with narrower phase width of 0.3 ms (Alonso et al, 2016).…”

Section: Technical Consideration Of Electrical Stimulation Mapping (Esm)mentioning

confidence: 99%

Language Mapping Using Stereo Electroencephalography: A Review and Expert Opinion

Aron

Jonas

Colnat-Coulbois

et al. 2021

Front. Hum. Neurosci.

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Stereo-electroencephalography (sEEG) is a method that uses stereotactically implanted depth electrodes for extra-operative mapping of epileptogenic and functional networks. sEEG derived functional mapping is achieved using electrical cortical stimulations (ECS) that are currently the gold standard for delineating eloquent cortex. As this stands true especially for primary cortices (e.g., visual, sensitive, motor, etc.), ECS applied to higher order brain areas determine more subtle behavioral responses. While anterior and posterior language areas in the dorsal language stream seem to share characteristics with primary cortices, basal temporal language area (BTLA) in the ventral temporal cortex (VTC) behaves as a highly associative cortex. After a short introduction and considerations about methodological aspects of ECS using sEEG, we review the sEEG language mapping literature in this perspective. We first establish the validity of this technique to map indispensable language cortices in the dorsal language stream. Second, we highlight the contrast between the growing empirical ECS experience and the lack of understanding regarding the fundamental mechanisms underlying ECS behavioral effects, especially concerning the dispensable language cortex in the VTC. Evidences for considering network architecture as determinant for ECS behavioral response complexities are discussed. Further, we address the importance of designing new research in network organization of language as this could enhance ECS ability to map interindividual variability, pathology driven reorganization, and ultimately identify network resilience markers in order to better predict post-operative language deficit. Finally, based on a whole body of available studies, we believe there is strong evidence to consider sEEG as a valid, safe and reliable method for defining eloquent language cortices although there have been no proper comparisons between surgical resections with or without extra-operative or intra-operative language mapping.

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Section: Technical Consideration Of Electrical Stimulation Mapping (Esm)mentioning

confidence: 99%

Language Mapping Using Stereo Electroencephalography: A Review and Expert Opinion

Aron

Jonas

Colnat-Coulbois

et al. 2021

Front. Hum. Neurosci.

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“…Early ECoG studies of Allison and colleagues reported a temporary inability to name photographs of famous faces following electrical stimulation in face‐selective (N200) VOTC sites. However, the ability to provide semantic information about the face and the dominance of effects in the left as compared with the right VOTC rather pointed to naming deficits . Puce et al .…”

Section: Summary and Challenges Ahead In Ieeg Mapping Of Face And Vismentioning

confidence: 99%

Mapping face categorization in the human ventral occipitotemporal cortex with direct neural intracranial recordings

Rossion

Jacques

Jonas

2018

Annals of the New York Academy of Sciences

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The neural basis of face categorization has been widely investigated with functional magnetic resonance imaging (fMRI), identifying a set of face-selective local regions in the ventral occipitotemporal cortex (VOTC). However, indirect recording of neural activity with fMRI is associated with large fluctuations of signal across regions, often underestimating face-selective responses in the anterior VOTC. While direct recording of neural activity with subdural grids of electrodes (electrocorticography, ECoG) or depth electrodes (stereotactic electroencephalography, SEEG) offers a unique opportunity to fill this gap in knowledge, these studies rather reveal widely distributed face-selective responses. Moreover, intracranial recordings are complicated by interindividual variability in neuroanatomy, ambiguity in definition, and quantification of responses of interest, as well as limited access to sulci with ECoG. Here, we propose to combine SEEG in large samples of individuals with fast periodic visual stimulation to objectively define, quantify, and characterize face categorization across the whole VOTC. This approach reconciles the wide distribution of neural face categorization responses with their (right) hemispheric and regional specialization, and reveals several face-selective regions in anterior VOTC sulci. We outline the challenges of this research program to understand the neural basis of face categorization and high-level visual recognition in general.

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“…However, implementation of the MRI study with VBM and ROI analyses allows us to exclude significant changes. Moreover, a wide body of recent literature confirms a hemispheric specialization, with the left side involved in naming (Bédos Ulvin et al, 2017;Snowden et al, 2017) and the right side in face and voice recognition (Morita et al, 2018;Roswandowitz, Kappes, Obrig, & von Kriegstein, 2018;). All these data support our findings that the right ATL may be a key region for voice/face recognition.…”

Section: Discussionmentioning

confidence: 95%

Multimodal face and voice recognition disorders in a case with unilateral right anterior temporal lobe atrophy.

Cosseddu¹,

Gazzina

Borroni

et al. 2018

Neuropsychology

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Intracerebral stimulation of left and right ventral temporal cortex during object naming

Cited by 29 publications

References 47 publications

Language Mapping Using Stereo Electroencephalography: A Review and Expert Opinion

Language Mapping Using Stereo Electroencephalography: A Review and Expert Opinion

Mapping face categorization in the human ventral occipitotemporal cortex with direct neural intracranial recordings

Multimodal face and voice recognition disorders in a case with unilateral right anterior temporal lobe atrophy.

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